Photographic elements containing blocked dye moieties
US5455141A · kind A · utility
6Cited by
24References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 15, 1994 |
| Grant date | Oct 3, 1995 |
| Priority date | — |
| Expiry date | Aug 15, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/159
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Photographic elements are described which contain a release compound that during photographic processing provides an imagewise distribution of a nucleophile which can react with a uniform distribution of a blocked dye moiety contained in the element to release an unblocked dye.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.